this is the time of year
when nothing to see
gives way to the hare in flight, the enormous
beauty of it stark against the mud
and thawglass on the track, before
it darts away, across the open fields
and leaves me dumbstruck, ready to be persuaded.
The meaning is fairly obvious -- I won't embarrass myself with a paraphrase, but will recall this -- and it is the sort of word that ought to be a word, but I cannot locate any uses outside of Burnside's poems. (There is another, earlier poem with "a litter of small gold apples, newly fallen, / wet with thawglass.")